upstream u-boot with additional patches for our devices/boards:
https://lists.denx.de/pipermail/u-boot/2017-March/282789.html (AXP crashes) ;
Gbit ethernet patch for some LIME2 revisions ;
with SPI flash support
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1298 lines
35 KiB
1298 lines
35 KiB
/*
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* (C) Copyright 2006 - 2008
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* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
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*
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* Copyright (c) 2005 Cisco Systems. All rights reserved.
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* Roland Dreier <rolandd@cisco.com>
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*
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* See file CREDITS for list of people who contributed to this
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* project.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of
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* the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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*/
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/* define DEBUG for debugging output (obviously ;-)) */
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#if 0
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#define DEBUG
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#endif
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#include <common.h>
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#include <pci.h>
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#include <ppc4xx.h>
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#include <asm/processor.h>
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#include <asm-ppc/io.h>
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#include <asm/errno.h>
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#if (defined(CONFIG_440SPE) || defined(CONFIG_405EX) || \
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defined(CONFIG_460EX) || defined(CONFIG_460GT)) && \
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defined(CONFIG_PCI) && !defined(CONFIG_PCI_DISABLE_PCIE)
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#include <asm/4xx_pcie.h>
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enum {
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PTYPE_ENDPOINT = 0x0,
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PTYPE_LEGACY_ENDPOINT = 0x1,
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PTYPE_ROOT_PORT = 0x4,
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LNKW_X1 = 0x1,
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LNKW_X4 = 0x4,
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LNKW_X8 = 0x8
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};
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static struct pci_controller pcie_hose[CONFIG_SYS_PCIE_NR_PORTS];
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/*
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* Per default, all cards are present, so we need to check if the
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* link comes up.
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*/
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int __board_pcie_card_present(int port)
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{
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return 1;
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}
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int board_pcie_card_present(int port)
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__attribute__((weak, alias("__board_pcie_card_present")));
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/*
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* Some boards have runtime detection of the first and last PCIe
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* slot used, so let's provide weak default functions for the
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* common version.
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*/
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int __board_pcie_first(void)
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{
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return 0;
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}
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int board_pcie_first(void)
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__attribute__((weak, alias("__board_pcie_first")));
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int __board_pcie_last(void)
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{
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return CONFIG_SYS_PCIE_NR_PORTS - 1;
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}
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int board_pcie_last(void)
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__attribute__((weak, alias("__board_pcie_last")));
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void __board_pcie_setup_port(int port, int rootpoint)
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{
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/* noting in this weak default implementation */
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}
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void board_pcie_setup_port(int port, int rootpoint)
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__attribute__((weak, alias("__board_pcie_setup_port")));
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void pcie_setup_hoses(int busno)
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{
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struct pci_controller *hose;
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int i, bus;
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int ret = 0;
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char *env;
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unsigned int delay;
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int first = board_pcie_first();
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int last = board_pcie_last();
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/*
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* Assume we're called after the PCI(X) hose(s) are initialized,
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* which takes bus ID 0... and therefore start numbering PCIe's
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* from the next number.
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*/
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bus = busno;
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for (i = first; i <= last; i++) {
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/*
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* Some boards (e.g. Katmai) can detects via hardware
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* if a PCIe card is plugged, so let's check this.
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*/
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if (!board_pcie_card_present(i))
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continue;
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if (is_end_point(i)) {
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board_pcie_setup_port(i, 0);
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ret = ppc4xx_init_pcie_endport(i);
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} else {
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board_pcie_setup_port(i, 1);
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ret = ppc4xx_init_pcie_rootport(i);
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}
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if (ret == -ENODEV)
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continue;
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if (ret) {
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printf("PCIE%d: initialization as %s failed\n", i,
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is_end_point(i) ? "endpoint" : "root-complex");
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continue;
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}
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hose = &pcie_hose[i];
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hose->first_busno = bus;
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hose->last_busno = bus;
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hose->current_busno = bus;
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/* setup mem resource */
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pci_set_region(hose->regions + 0,
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CONFIG_SYS_PCIE_MEMBASE + i * CONFIG_SYS_PCIE_MEMSIZE,
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CONFIG_SYS_PCIE_MEMBASE + i * CONFIG_SYS_PCIE_MEMSIZE,
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CONFIG_SYS_PCIE_MEMSIZE,
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PCI_REGION_MEM);
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hose->region_count = 1;
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pci_register_hose(hose);
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if (is_end_point(i)) {
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ppc4xx_setup_pcie_endpoint(hose, i);
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/*
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* Reson for no scanning is endpoint can not generate
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* upstream configuration accesses.
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*/
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} else {
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ppc4xx_setup_pcie_rootpoint(hose, i);
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env = getenv ("pciscandelay");
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if (env != NULL) {
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delay = simple_strtoul(env, NULL, 10);
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if (delay > 5)
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printf("Warning, expect noticable delay before "
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"PCIe scan due to 'pciscandelay' value!\n");
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mdelay(delay * 1000);
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}
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/*
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* Config access can only go down stream
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*/
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hose->last_busno = pci_hose_scan(hose);
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bus = hose->last_busno + 1;
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}
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}
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}
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static int validate_endpoint(struct pci_controller *hose)
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{
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if (hose->cfg_data == (u8 *)CONFIG_SYS_PCIE0_CFGBASE)
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return (is_end_point(0));
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else if (hose->cfg_data == (u8 *)CONFIG_SYS_PCIE1_CFGBASE)
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return (is_end_point(1));
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#if CONFIG_SYS_PCIE_NR_PORTS > 2
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else if (hose->cfg_data == (u8 *)CONFIG_SYS_PCIE2_CFGBASE)
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return (is_end_point(2));
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#endif
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return 0;
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}
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static u8* pcie_get_base(struct pci_controller *hose, unsigned int devfn)
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{
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u8 *base = (u8*)hose->cfg_data;
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/* use local configuration space for the first bus */
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if (PCI_BUS(devfn) == 0) {
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if (hose->cfg_data == (u8*)CONFIG_SYS_PCIE0_CFGBASE)
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base = (u8*)CONFIG_SYS_PCIE0_XCFGBASE;
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if (hose->cfg_data == (u8*)CONFIG_SYS_PCIE1_CFGBASE)
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base = (u8*)CONFIG_SYS_PCIE1_XCFGBASE;
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#if CONFIG_SYS_PCIE_NR_PORTS > 2
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if (hose->cfg_data == (u8*)CONFIG_SYS_PCIE2_CFGBASE)
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base = (u8*)CONFIG_SYS_PCIE2_XCFGBASE;
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#endif
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}
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return base;
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}
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static void pcie_dmer_disable(void)
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{
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mtdcr (DCRN_PEGPL_CFG(DCRN_PCIE0_BASE),
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mfdcr (DCRN_PEGPL_CFG(DCRN_PCIE0_BASE)) | GPL_DMER_MASK_DISA);
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mtdcr (DCRN_PEGPL_CFG(DCRN_PCIE1_BASE),
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mfdcr (DCRN_PEGPL_CFG(DCRN_PCIE1_BASE)) | GPL_DMER_MASK_DISA);
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#if CONFIG_SYS_PCIE_NR_PORTS > 2
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mtdcr (DCRN_PEGPL_CFG(DCRN_PCIE2_BASE),
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mfdcr (DCRN_PEGPL_CFG(DCRN_PCIE2_BASE)) | GPL_DMER_MASK_DISA);
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#endif
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}
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static void pcie_dmer_enable(void)
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{
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mtdcr (DCRN_PEGPL_CFG (DCRN_PCIE0_BASE),
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mfdcr (DCRN_PEGPL_CFG(DCRN_PCIE0_BASE)) & ~GPL_DMER_MASK_DISA);
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mtdcr (DCRN_PEGPL_CFG (DCRN_PCIE1_BASE),
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mfdcr (DCRN_PEGPL_CFG(DCRN_PCIE1_BASE)) & ~GPL_DMER_MASK_DISA);
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#if CONFIG_SYS_PCIE_NR_PORTS > 2
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mtdcr (DCRN_PEGPL_CFG (DCRN_PCIE2_BASE),
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mfdcr (DCRN_PEGPL_CFG(DCRN_PCIE2_BASE)) & ~GPL_DMER_MASK_DISA);
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#endif
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}
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static int pcie_read_config(struct pci_controller *hose, unsigned int devfn,
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int offset, int len, u32 *val) {
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u8 *address;
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*val = 0;
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if (validate_endpoint(hose))
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return 0; /* No upstream config access */
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/*
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* Bus numbers are relative to hose->first_busno
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*/
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devfn -= PCI_BDF(hose->first_busno, 0, 0);
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/*
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* NOTICE: configuration space ranges are currenlty mapped only for
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* the first 16 buses, so such limit must be imposed. In case more
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* buses are required the TLB settings in board/amcc/<board>/init.S
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* need to be altered accordingly (one bus takes 1 MB of memory space).
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*/
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if (PCI_BUS(devfn) >= 16)
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return 0;
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/*
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* Only single device/single function is supported for the primary and
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* secondary buses of the 440SPe host bridge.
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*/
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if ((!((PCI_FUNC(devfn) == 0) && (PCI_DEV(devfn) == 0))) &&
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((PCI_BUS(devfn) == 0) || (PCI_BUS(devfn) == 1)))
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return 0;
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address = pcie_get_base(hose, devfn);
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offset += devfn << 4;
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/*
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* Reading from configuration space of non-existing device can
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* generate transaction errors. For the read duration we suppress
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* assertion of machine check exceptions to avoid those.
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*/
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pcie_dmer_disable ();
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debug("%s: cfg_data=%08x offset=%08x\n", __func__, hose->cfg_data, offset);
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switch (len) {
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case 1:
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*val = in_8(hose->cfg_data + offset);
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break;
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case 2:
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*val = in_le16((u16 *)(hose->cfg_data + offset));
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break;
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default:
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*val = in_le32((u32*)(hose->cfg_data + offset));
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break;
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}
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pcie_dmer_enable ();
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return 0;
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}
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static int pcie_write_config(struct pci_controller *hose, unsigned int devfn,
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int offset, int len, u32 val) {
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u8 *address;
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if (validate_endpoint(hose))
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return 0; /* No upstream config access */
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/*
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* Bus numbers are relative to hose->first_busno
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*/
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devfn -= PCI_BDF(hose->first_busno, 0, 0);
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/*
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* Same constraints as in pcie_read_config().
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*/
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if (PCI_BUS(devfn) >= 16)
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return 0;
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if ((!((PCI_FUNC(devfn) == 0) && (PCI_DEV(devfn) == 0))) &&
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((PCI_BUS(devfn) == 0) || (PCI_BUS(devfn) == 1)))
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return 0;
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address = pcie_get_base(hose, devfn);
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offset += devfn << 4;
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|
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/*
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* Suppress MCK exceptions, similar to pcie_read_config()
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*/
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pcie_dmer_disable ();
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switch (len) {
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case 1:
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out_8(hose->cfg_data + offset, val);
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break;
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case 2:
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out_le16((u16 *)(hose->cfg_data + offset), val);
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break;
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default:
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out_le32((u32 *)(hose->cfg_data + offset), val);
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break;
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}
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pcie_dmer_enable ();
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return 0;
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}
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int pcie_read_config_byte(struct pci_controller *hose,pci_dev_t dev,int offset,u8 *val)
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{
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u32 v;
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int rv;
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rv = pcie_read_config(hose, dev, offset, 1, &v);
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*val = (u8)v;
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return rv;
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}
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int pcie_read_config_word(struct pci_controller *hose,pci_dev_t dev,int offset,u16 *val)
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{
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u32 v;
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int rv;
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rv = pcie_read_config(hose, dev, offset, 2, &v);
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*val = (u16)v;
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return rv;
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}
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|
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int pcie_read_config_dword(struct pci_controller *hose,pci_dev_t dev,int offset,u32 *val)
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{
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u32 v;
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int rv;
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rv = pcie_read_config(hose, dev, offset, 3, &v);
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*val = (u32)v;
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return rv;
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}
|
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|
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int pcie_write_config_byte(struct pci_controller *hose,pci_dev_t dev,int offset,u8 val)
|
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{
|
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return pcie_write_config(hose,(u32)dev,offset,1,val);
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}
|
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|
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int pcie_write_config_word(struct pci_controller *hose,pci_dev_t dev,int offset,u16 val)
|
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{
|
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return pcie_write_config(hose,(u32)dev,offset,2,(u32 )val);
|
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}
|
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|
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int pcie_write_config_dword(struct pci_controller *hose,pci_dev_t dev,int offset,u32 val)
|
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{
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return pcie_write_config(hose,(u32)dev,offset,3,(u32 )val);
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}
|
|
|
|
#if defined(CONFIG_440SPE)
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static void ppc4xx_setup_utl(u32 port) {
|
|
|
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volatile void *utl_base = NULL;
|
|
|
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/*
|
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* Map UTL registers
|
|
*/
|
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switch (port) {
|
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case 0:
|
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mtdcr(DCRN_PEGPL_REGBAH(PCIE0), 0x0000000c);
|
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mtdcr(DCRN_PEGPL_REGBAL(PCIE0), 0x20000000);
|
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mtdcr(DCRN_PEGPL_REGMSK(PCIE0), 0x00007001);
|
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mtdcr(DCRN_PEGPL_SPECIAL(PCIE0), 0x68782800);
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break;
|
|
|
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case 1:
|
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mtdcr(DCRN_PEGPL_REGBAH(PCIE1), 0x0000000c);
|
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mtdcr(DCRN_PEGPL_REGBAL(PCIE1), 0x20001000);
|
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mtdcr(DCRN_PEGPL_REGMSK(PCIE1), 0x00007001);
|
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mtdcr(DCRN_PEGPL_SPECIAL(PCIE1), 0x68782800);
|
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break;
|
|
|
|
case 2:
|
|
mtdcr(DCRN_PEGPL_REGBAH(PCIE2), 0x0000000c);
|
|
mtdcr(DCRN_PEGPL_REGBAL(PCIE2), 0x20002000);
|
|
mtdcr(DCRN_PEGPL_REGMSK(PCIE2), 0x00007001);
|
|
mtdcr(DCRN_PEGPL_SPECIAL(PCIE2), 0x68782800);
|
|
break;
|
|
}
|
|
utl_base = (unsigned int *)(CONFIG_SYS_PCIE_BASE + 0x1000 * port);
|
|
|
|
/*
|
|
* Set buffer allocations and then assert VRB and TXE.
|
|
*/
|
|
out_be32(utl_base + PEUTL_OUTTR, 0x08000000);
|
|
out_be32(utl_base + PEUTL_INTR, 0x02000000);
|
|
out_be32(utl_base + PEUTL_OPDBSZ, 0x10000000);
|
|
out_be32(utl_base + PEUTL_PBBSZ, 0x53000000);
|
|
out_be32(utl_base + PEUTL_IPHBSZ, 0x08000000);
|
|
out_be32(utl_base + PEUTL_IPDBSZ, 0x10000000);
|
|
out_be32(utl_base + PEUTL_RCIRQEN, 0x00f00000);
|
|
out_be32(utl_base + PEUTL_PCTL, 0x80800066);
|
|
}
|
|
|
|
static int check_error(void)
|
|
{
|
|
u32 valPE0, valPE1, valPE2;
|
|
int err = 0;
|
|
|
|
/* SDR0_PEGPLLLCT1 reset */
|
|
if (!(valPE0 = SDR_READ(PESDR0_PLLLCT1) & 0x01000000))
|
|
printf("PCIE: SDR0_PEGPLLLCT1 reset error 0x%x\n", valPE0);
|
|
|
|
valPE0 = SDR_READ(PESDR0_RCSSET);
|
|
valPE1 = SDR_READ(PESDR1_RCSSET);
|
|
valPE2 = SDR_READ(PESDR2_RCSSET);
|
|
|
|
/* SDR0_PExRCSSET rstgu */
|
|
if (!(valPE0 & 0x01000000) ||
|
|
!(valPE1 & 0x01000000) ||
|
|
!(valPE2 & 0x01000000)) {
|
|
printf("PCIE: SDR0_PExRCSSET rstgu error\n");
|
|
err = -1;
|
|
}
|
|
|
|
/* SDR0_PExRCSSET rstdl */
|
|
if (!(valPE0 & 0x00010000) ||
|
|
!(valPE1 & 0x00010000) ||
|
|
!(valPE2 & 0x00010000)) {
|
|
printf("PCIE: SDR0_PExRCSSET rstdl error\n");
|
|
err = -1;
|
|
}
|
|
|
|
/* SDR0_PExRCSSET rstpyn */
|
|
if ((valPE0 & 0x00001000) ||
|
|
(valPE1 & 0x00001000) ||
|
|
(valPE2 & 0x00001000)) {
|
|
printf("PCIE: SDR0_PExRCSSET rstpyn error\n");
|
|
err = -1;
|
|
}
|
|
|
|
/* SDR0_PExRCSSET hldplb */
|
|
if ((valPE0 & 0x10000000) ||
|
|
(valPE1 & 0x10000000) ||
|
|
(valPE2 & 0x10000000)) {
|
|
printf("PCIE: SDR0_PExRCSSET hldplb error\n");
|
|
err = -1;
|
|
}
|
|
|
|
/* SDR0_PExRCSSET rdy */
|
|
if ((valPE0 & 0x00100000) ||
|
|
(valPE1 & 0x00100000) ||
|
|
(valPE2 & 0x00100000)) {
|
|
printf("PCIE: SDR0_PExRCSSET rdy error\n");
|
|
err = -1;
|
|
}
|
|
|
|
/* SDR0_PExRCSSET shutdown */
|
|
if ((valPE0 & 0x00000100) ||
|
|
(valPE1 & 0x00000100) ||
|
|
(valPE2 & 0x00000100)) {
|
|
printf("PCIE: SDR0_PExRCSSET shutdown error\n");
|
|
err = -1;
|
|
}
|
|
return err;
|
|
}
|
|
|
|
/*
|
|
* Initialize PCI Express core
|
|
*/
|
|
int ppc4xx_init_pcie(void)
|
|
{
|
|
int time_out = 20;
|
|
|
|
/* Set PLL clock receiver to LVPECL */
|
|
SDR_WRITE(PESDR0_PLLLCT1, SDR_READ(PESDR0_PLLLCT1) | 1 << 28);
|
|
|
|
if (check_error()) {
|
|
printf("ERROR: failed to set PCIe reference clock receiver --"
|
|
"PESDR0_PLLLCT1 = 0x%08x\n", SDR_READ(PESDR0_PLLLCT1));
|
|
|
|
return -1;
|
|
}
|
|
|
|
/* Did resistance calibration work? */
|
|
if (!(SDR_READ(PESDR0_PLLLCT2) & 0x10000)) {
|
|
printf("ERROR: PCIe resistance calibration failed --"
|
|
"PESDR0_PLLLCT2 = 0x%08x\n", SDR_READ(PESDR0_PLLLCT2));
|
|
|
|
return -1;
|
|
}
|
|
/* De-assert reset of PCIe PLL, wait for lock */
|
|
SDR_WRITE(PESDR0_PLLLCT1, SDR_READ(PESDR0_PLLLCT1) & ~(1 << 24));
|
|
udelay(300); /* 300 uS is maximum time lock should take */
|
|
|
|
while (time_out) {
|
|
if (!(SDR_READ(PESDR0_PLLLCT3) & 0x10000000)) {
|
|
time_out--;
|
|
udelay(20); /* Wait 20 uS more if needed */
|
|
} else
|
|
break;
|
|
}
|
|
if (!time_out) {
|
|
printf("ERROR: PCIe PLL VCO output not locked to ref clock --"
|
|
"PESDR0_PLLLCTS=0x%08x\n", SDR_READ(PESDR0_PLLLCT3));
|
|
|
|
return -1;
|
|
}
|
|
return 0;
|
|
}
|
|
#endif
|
|
|
|
#if defined(CONFIG_460EX) || defined(CONFIG_460GT)
|
|
static void ppc4xx_setup_utl(u32 port)
|
|
{
|
|
volatile void *utl_base = NULL;
|
|
|
|
/*
|
|
* Map UTL registers at 0x0801_n000 (4K 0xfff mask) PEGPLn_REGMSK
|
|
*/
|
|
switch (port) {
|
|
case 0:
|
|
mtdcr(DCRN_PEGPL_REGBAH(PCIE0), U64_TO_U32_HIGH(CONFIG_SYS_PCIE0_UTLBASE));
|
|
mtdcr(DCRN_PEGPL_REGBAL(PCIE0), U64_TO_U32_LOW(CONFIG_SYS_PCIE0_UTLBASE));
|
|
mtdcr(DCRN_PEGPL_REGMSK(PCIE0), 0x00007001); /* BAM 11100000=4KB */
|
|
mtdcr(DCRN_PEGPL_SPECIAL(PCIE0), 0);
|
|
break;
|
|
|
|
case 1:
|
|
mtdcr(DCRN_PEGPL_REGBAH(PCIE1), U64_TO_U32_HIGH(CONFIG_SYS_PCIE0_UTLBASE));
|
|
mtdcr(DCRN_PEGPL_REGBAL(PCIE1), U64_TO_U32_LOW(CONFIG_SYS_PCIE0_UTLBASE)
|
|
+ 0x1000);
|
|
mtdcr(DCRN_PEGPL_REGMSK(PCIE1), 0x00007001); /* BAM 11100000=4KB */
|
|
mtdcr(DCRN_PEGPL_SPECIAL(PCIE1), 0);
|
|
break;
|
|
}
|
|
utl_base = (unsigned int *)(CONFIG_SYS_PCIE_BASE + 0x1000 * port);
|
|
|
|
/*
|
|
* Set buffer allocations and then assert VRB and TXE.
|
|
*/
|
|
out_be32(utl_base + PEUTL_PBCTL, 0x0800000c); /* PLBME, CRRE */
|
|
out_be32(utl_base + PEUTL_OUTTR, 0x08000000);
|
|
out_be32(utl_base + PEUTL_INTR, 0x02000000);
|
|
out_be32(utl_base + PEUTL_OPDBSZ, 0x04000000); /* OPD = 512 Bytes */
|
|
out_be32(utl_base + PEUTL_PBBSZ, 0x00000000); /* Max 512 Bytes */
|
|
out_be32(utl_base + PEUTL_IPHBSZ, 0x02000000);
|
|
out_be32(utl_base + PEUTL_IPDBSZ, 0x04000000); /* IPD = 512 Bytes */
|
|
out_be32(utl_base + PEUTL_RCIRQEN, 0x00f00000);
|
|
out_be32(utl_base + PEUTL_PCTL, 0x80800066); /* VRB,TXE,timeout=default */
|
|
}
|
|
|
|
/*
|
|
* TODO: double check PCI express SDR based on the latest user manual
|
|
* Some registers specified here no longer exist.. has to be
|
|
* updated based on the final EAS spec.
|
|
*/
|
|
static int check_error(void)
|
|
{
|
|
u32 valPE0, valPE1;
|
|
int err = 0;
|
|
|
|
valPE0 = SDR_READ(SDRN_PESDR_RCSSET(0));
|
|
valPE1 = SDR_READ(SDRN_PESDR_RCSSET(1));
|
|
|
|
/* SDR0_PExRCSSET rstgu */
|
|
if (!(valPE0 & PESDRx_RCSSET_RSTGU) || !(valPE1 & PESDRx_RCSSET_RSTGU)) {
|
|
printf("PCIE: SDR0_PExRCSSET rstgu error\n");
|
|
err = -1;
|
|
}
|
|
|
|
/* SDR0_PExRCSSET rstdl */
|
|
if (!(valPE0 & PESDRx_RCSSET_RSTDL) || !(valPE1 & PESDRx_RCSSET_RSTDL)) {
|
|
printf("PCIE: SDR0_PExRCSSET rstdl error\n");
|
|
err = -1;
|
|
}
|
|
|
|
/* SDR0_PExRCSSET rstpyn */
|
|
if ((valPE0 & PESDRx_RCSSET_RSTPYN) || (valPE1 & PESDRx_RCSSET_RSTPYN)) {
|
|
printf("PCIE: SDR0_PExRCSSET rstpyn error\n");
|
|
err = -1;
|
|
}
|
|
|
|
/* SDR0_PExRCSSET hldplb */
|
|
if ((valPE0 & PESDRx_RCSSET_HLDPLB) || (valPE1 & PESDRx_RCSSET_HLDPLB)) {
|
|
printf("PCIE: SDR0_PExRCSSET hldplb error\n");
|
|
err = -1;
|
|
}
|
|
|
|
/* SDR0_PExRCSSET rdy */
|
|
if ((valPE0 & PESDRx_RCSSET_RDY) || (valPE1 & PESDRx_RCSSET_RDY)) {
|
|
printf("PCIE: SDR0_PExRCSSET rdy error\n");
|
|
err = -1;
|
|
}
|
|
|
|
return err;
|
|
}
|
|
|
|
/*
|
|
* Initialize PCI Express core as described in User Manual
|
|
* TODO: double check PE SDR PLL Register with the updated user manual.
|
|
*/
|
|
int ppc4xx_init_pcie(void)
|
|
{
|
|
if (check_error())
|
|
return -1;
|
|
|
|
return 0;
|
|
}
|
|
#endif /* CONFIG_460EX */
|
|
|
|
#if defined(CONFIG_405EX)
|
|
static void ppc4xx_setup_utl(u32 port)
|
|
{
|
|
u32 utl_base;
|
|
|
|
/*
|
|
* Map UTL registers at 0xef4f_n000 (4K 0xfff mask) PEGPLn_REGMSK
|
|
*/
|
|
switch (port) {
|
|
case 0:
|
|
mtdcr(DCRN_PEGPL_REGBAH(PCIE0), 0x00000000);
|
|
mtdcr(DCRN_PEGPL_REGBAL(PCIE0), CONFIG_SYS_PCIE0_UTLBASE);
|
|
mtdcr(DCRN_PEGPL_REGMSK(PCIE0), 0x00007001); /* 4k region, valid */
|
|
mtdcr(DCRN_PEGPL_SPECIAL(PCIE0), 0);
|
|
break;
|
|
|
|
case 1:
|
|
mtdcr(DCRN_PEGPL_REGBAH(PCIE1), 0x00000000);
|
|
mtdcr(DCRN_PEGPL_REGBAL(PCIE1), CONFIG_SYS_PCIE1_UTLBASE);
|
|
mtdcr(DCRN_PEGPL_REGMSK(PCIE1), 0x00007001); /* 4k region, valid */
|
|
mtdcr(DCRN_PEGPL_SPECIAL(PCIE1), 0);
|
|
|
|
break;
|
|
}
|
|
utl_base = (port==0) ? CONFIG_SYS_PCIE0_UTLBASE : CONFIG_SYS_PCIE1_UTLBASE;
|
|
|
|
/*
|
|
* Set buffer allocations and then assert VRB and TXE.
|
|
*/
|
|
out_be32((u32 *)(utl_base + PEUTL_OUTTR), 0x02000000);
|
|
out_be32((u32 *)(utl_base + PEUTL_INTR), 0x02000000);
|
|
out_be32((u32 *)(utl_base + PEUTL_OPDBSZ), 0x04000000);
|
|
out_be32((u32 *)(utl_base + PEUTL_PBBSZ), 0x21000000);
|
|
out_be32((u32 *)(utl_base + PEUTL_IPHBSZ), 0x02000000);
|
|
out_be32((u32 *)(utl_base + PEUTL_IPDBSZ), 0x04000000);
|
|
out_be32((u32 *)(utl_base + PEUTL_RCIRQEN), 0x00f00000);
|
|
out_be32((u32 *)(utl_base + PEUTL_PCTL), 0x80800066);
|
|
|
|
out_be32((u32 *)(utl_base + PEUTL_PBCTL), 0x0800000c);
|
|
out_be32((u32 *)(utl_base + PEUTL_RCSTA),
|
|
in_be32((u32 *)(utl_base + PEUTL_RCSTA)) | 0x000040000);
|
|
}
|
|
|
|
int ppc4xx_init_pcie(void)
|
|
{
|
|
/*
|
|
* Nothing to do on 405EX
|
|
*/
|
|
return 0;
|
|
}
|
|
#endif /* CONFIG_405EX */
|
|
|
|
/*
|
|
* Board-specific pcie initialization
|
|
* Platform code can reimplement ppc4xx_init_pcie_port_hw() if needed
|
|
*/
|
|
|
|
/*
|
|
* Initialize various parts of the PCI Express core for our port:
|
|
*
|
|
* - Set as a root port and enable max width
|
|
* (PXIE0 -> X8, PCIE1 and PCIE2 -> X4).
|
|
* - Set up UTL configuration.
|
|
* - Increase SERDES drive strength to levels suggested by AMCC.
|
|
* - De-assert RSTPYN, RSTDL and RSTGU.
|
|
*
|
|
* NOTICE for 440SPE revB chip: PESDRn_UTLSET2 is not set - we leave it
|
|
* with default setting 0x11310000. The register has new fields,
|
|
* PESDRn_UTLSET2[LKINE] in particular: clearing it leads to PCIE core
|
|
* hang.
|
|
*/
|
|
#if defined(CONFIG_440SPE)
|
|
int __ppc4xx_init_pcie_port_hw(int port, int rootport)
|
|
{
|
|
u32 val = 1 << 24;
|
|
u32 utlset1;
|
|
|
|
if (rootport) {
|
|
val = PTYPE_ROOT_PORT << 20;
|
|
utlset1 = 0x21222222;
|
|
} else {
|
|
val = PTYPE_LEGACY_ENDPOINT << 20;
|
|
utlset1 = 0x20222222;
|
|
}
|
|
|
|
if (port == 0)
|
|
val |= LNKW_X8 << 12;
|
|
else
|
|
val |= LNKW_X4 << 12;
|
|
|
|
SDR_WRITE(SDRN_PESDR_DLPSET(port), val);
|
|
SDR_WRITE(SDRN_PESDR_UTLSET1(port), utlset1);
|
|
if (!ppc440spe_revB())
|
|
SDR_WRITE(SDRN_PESDR_UTLSET2(port), 0x11000000);
|
|
SDR_WRITE(SDRN_PESDR_HSSL0SET1(port), 0x35000000);
|
|
SDR_WRITE(SDRN_PESDR_HSSL1SET1(port), 0x35000000);
|
|
SDR_WRITE(SDRN_PESDR_HSSL2SET1(port), 0x35000000);
|
|
SDR_WRITE(SDRN_PESDR_HSSL3SET1(port), 0x35000000);
|
|
if (port == 0) {
|
|
SDR_WRITE(PESDR0_HSSL4SET1, 0x35000000);
|
|
SDR_WRITE(PESDR0_HSSL5SET1, 0x35000000);
|
|
SDR_WRITE(PESDR0_HSSL6SET1, 0x35000000);
|
|
SDR_WRITE(PESDR0_HSSL7SET1, 0x35000000);
|
|
}
|
|
SDR_WRITE(SDRN_PESDR_RCSSET(port), (SDR_READ(SDRN_PESDR_RCSSET(port)) &
|
|
~(1 << 24 | 1 << 16)) | 1 << 12);
|
|
|
|
return 0;
|
|
}
|
|
#endif /* CONFIG_440SPE */
|
|
|
|
#if defined(CONFIG_460EX) || defined(CONFIG_460GT)
|
|
int __ppc4xx_init_pcie_port_hw(int port, int rootport)
|
|
{
|
|
u32 val;
|
|
u32 utlset1;
|
|
|
|
if (rootport)
|
|
val = PTYPE_ROOT_PORT << 20;
|
|
else
|
|
val = PTYPE_LEGACY_ENDPOINT << 20;
|
|
|
|
if (port == 0) {
|
|
val |= LNKW_X1 << 12;
|
|
utlset1 = 0x20000000;
|
|
} else {
|
|
val |= LNKW_X4 << 12;
|
|
utlset1 = 0x20101101;
|
|
}
|
|
|
|
SDR_WRITE(SDRN_PESDR_DLPSET(port), val);
|
|
SDR_WRITE(SDRN_PESDR_UTLSET1(port), utlset1);
|
|
SDR_WRITE(SDRN_PESDR_UTLSET2(port), 0x01210000);
|
|
|
|
switch (port) {
|
|
case 0:
|
|
SDR_WRITE(PESDR0_L0CDRCTL, 0x00003230);
|
|
SDR_WRITE(PESDR0_L0DRV, 0x00000130);
|
|
SDR_WRITE(PESDR0_L0CLK, 0x00000006);
|
|
|
|
SDR_WRITE(PESDR0_PHY_CTL_RST,0x10000000);
|
|
break;
|
|
|
|
case 1:
|
|
SDR_WRITE(PESDR1_L0CDRCTL, 0x00003230);
|
|
SDR_WRITE(PESDR1_L1CDRCTL, 0x00003230);
|
|
SDR_WRITE(PESDR1_L2CDRCTL, 0x00003230);
|
|
SDR_WRITE(PESDR1_L3CDRCTL, 0x00003230);
|
|
SDR_WRITE(PESDR1_L0DRV, 0x00000130);
|
|
SDR_WRITE(PESDR1_L1DRV, 0x00000130);
|
|
SDR_WRITE(PESDR1_L2DRV, 0x00000130);
|
|
SDR_WRITE(PESDR1_L3DRV, 0x00000130);
|
|
SDR_WRITE(PESDR1_L0CLK, 0x00000006);
|
|
SDR_WRITE(PESDR1_L1CLK, 0x00000006);
|
|
SDR_WRITE(PESDR1_L2CLK, 0x00000006);
|
|
SDR_WRITE(PESDR1_L3CLK, 0x00000006);
|
|
|
|
SDR_WRITE(PESDR1_PHY_CTL_RST,0x10000000);
|
|
break;
|
|
}
|
|
|
|
SDR_WRITE(SDRN_PESDR_RCSSET(port), SDR_READ(SDRN_PESDR_RCSSET(port)) |
|
|
(PESDRx_RCSSET_RSTGU | PESDRx_RCSSET_RSTPYN));
|
|
|
|
/* Poll for PHY reset */
|
|
switch (port) {
|
|
case 0:
|
|
while (!(SDR_READ(PESDR0_RSTSTA) & 0x1))
|
|
udelay(10);
|
|
break;
|
|
case 1:
|
|
while (!(SDR_READ(PESDR1_RSTSTA) & 0x1))
|
|
udelay(10);
|
|
break;
|
|
}
|
|
|
|
SDR_WRITE(SDRN_PESDR_RCSSET(port),
|
|
(SDR_READ(SDRN_PESDR_RCSSET(port)) &
|
|
~(PESDRx_RCSSET_RSTGU | PESDRx_RCSSET_RSTDL)) |
|
|
PESDRx_RCSSET_RSTPYN);
|
|
|
|
return 0;
|
|
}
|
|
#endif /* CONFIG_440SPE */
|
|
|
|
#if defined(CONFIG_405EX)
|
|
int __ppc4xx_init_pcie_port_hw(int port, int rootport)
|
|
{
|
|
u32 val;
|
|
|
|
if (rootport)
|
|
val = 0x00401000;
|
|
else
|
|
val = 0x00101000;
|
|
|
|
SDR_WRITE(SDRN_PESDR_DLPSET(port), val);
|
|
SDR_WRITE(SDRN_PESDR_UTLSET1(port), 0x00000000);
|
|
SDR_WRITE(SDRN_PESDR_UTLSET2(port), 0x01010000);
|
|
SDR_WRITE(SDRN_PESDR_PHYSET1(port), 0x720F0000);
|
|
SDR_WRITE(SDRN_PESDR_PHYSET2(port), 0x70600003);
|
|
|
|
/* Assert the PE0_PHY reset */
|
|
SDR_WRITE(SDRN_PESDR_RCSSET(port), 0x01010000);
|
|
udelay(1000);
|
|
|
|
/* deassert the PE0_hotreset */
|
|
if (is_end_point(port))
|
|
SDR_WRITE(SDRN_PESDR_RCSSET(port), 0x01111000);
|
|
else
|
|
SDR_WRITE(SDRN_PESDR_RCSSET(port), 0x01101000);
|
|
|
|
/* poll for phy !reset */
|
|
while (!(SDR_READ(SDRN_PESDR_PHYSTA(port)) & 0x00001000))
|
|
;
|
|
|
|
/* deassert the PE0_gpl_utl_reset */
|
|
SDR_WRITE(SDRN_PESDR_RCSSET(port), 0x00101000);
|
|
|
|
if (port == 0)
|
|
mtdcr(DCRN_PEGPL_CFG(PCIE0), 0x10000000); /* guarded on */
|
|
else
|
|
mtdcr(DCRN_PEGPL_CFG(PCIE1), 0x10000000); /* guarded on */
|
|
|
|
return 0;
|
|
}
|
|
#endif /* CONFIG_405EX */
|
|
|
|
int ppc4xx_init_pcie_port_hw(int port, int rootport)
|
|
__attribute__((weak, alias("__ppc4xx_init_pcie_port_hw")));
|
|
|
|
/*
|
|
* We map PCI Express configuration access into the 512MB regions
|
|
*
|
|
* NOTICE: revB is very strict about PLB real addressess and ranges to
|
|
* be mapped for config space; it seems to only work with d_nnnn_nnnn
|
|
* range (hangs the core upon config transaction attempts when set
|
|
* otherwise) while revA uses c_nnnn_nnnn.
|
|
*
|
|
* For 440SPe revA:
|
|
* PCIE0: 0xc_4000_0000
|
|
* PCIE1: 0xc_8000_0000
|
|
* PCIE2: 0xc_c000_0000
|
|
*
|
|
* For 440SPe revB:
|
|
* PCIE0: 0xd_0000_0000
|
|
* PCIE1: 0xd_2000_0000
|
|
* PCIE2: 0xd_4000_0000
|
|
*
|
|
* For 405EX:
|
|
* PCIE0: 0xa000_0000
|
|
* PCIE1: 0xc000_0000
|
|
*
|
|
* For 460EX/GT:
|
|
* PCIE0: 0xd_0000_0000
|
|
* PCIE1: 0xd_2000_0000
|
|
*/
|
|
static inline u64 ppc4xx_get_cfgaddr(int port)
|
|
{
|
|
#if defined(CONFIG_405EX)
|
|
if (port == 0)
|
|
return (u64)CONFIG_SYS_PCIE0_CFGBASE;
|
|
else
|
|
return (u64)CONFIG_SYS_PCIE1_CFGBASE;
|
|
#endif
|
|
#if defined(CONFIG_440SPE)
|
|
if (ppc440spe_revB()) {
|
|
switch (port) {
|
|
default: /* to satisfy compiler */
|
|
case 0:
|
|
return 0x0000000d00000000ULL;
|
|
case 1:
|
|
return 0x0000000d20000000ULL;
|
|
case 2:
|
|
return 0x0000000d40000000ULL;
|
|
}
|
|
} else {
|
|
switch (port) {
|
|
default: /* to satisfy compiler */
|
|
case 0:
|
|
return 0x0000000c40000000ULL;
|
|
case 1:
|
|
return 0x0000000c80000000ULL;
|
|
case 2:
|
|
return 0x0000000cc0000000ULL;
|
|
}
|
|
}
|
|
#endif
|
|
#if defined(CONFIG_460EX) || defined(CONFIG_460GT)
|
|
if (port == 0)
|
|
return 0x0000000d00000000ULL;
|
|
else
|
|
return 0x0000000d20000000ULL;
|
|
#endif
|
|
}
|
|
|
|
/*
|
|
* 4xx boards as endpoint and root point setup
|
|
* and
|
|
* testing inbound and out bound windows
|
|
*
|
|
* 4xx boards can be plugged into another 4xx boards or you can get PCI-E
|
|
* cable which can be used to setup loop back from one port to another port.
|
|
* Please rememeber that unless there is a endpoint plugged in to root port it
|
|
* will not initialize. It is the same in case of endpoint , unless there is
|
|
* root port attached it will not initialize.
|
|
*
|
|
* In this release of software all the PCI-E ports are configured as either
|
|
* endpoint or rootpoint.In future we will have support for selective ports
|
|
* setup as endpoint and root point in single board.
|
|
*
|
|
* Once your board came up as root point , you can verify by reading
|
|
* /proc/bus/pci/devices. Where you can see the configuration registers
|
|
* of endpoint device attached to the port.
|
|
*
|
|
* Enpoint cofiguration can be verified by connecting 4xx board to any
|
|
* host or another 4xx board. Then try to scan the device. In case of
|
|
* linux use "lspci" or appripriate os command.
|
|
*
|
|
* How do I verify the inbound and out bound windows ? (4xx to 4xx)
|
|
* in this configuration inbound and outbound windows are setup to access
|
|
* sram memroy area. SRAM is at 0x4 0000 0000 , on PLB bus. This address
|
|
* is mapped at 0x90000000. From u-boot prompt write data 0xb000 0000,
|
|
* This is waere your POM(PLB out bound memory window) mapped. then
|
|
* read the data from other 4xx board's u-boot prompt at address
|
|
* 0x9000 0000(SRAM). Data should match.
|
|
* In case of inbound , write data to u-boot command prompt at 0xb000 0000
|
|
* which is mapped to 0x4 0000 0000. Now on rootpoint yucca u-boot prompt check
|
|
* data at 0x9000 0000(SRAM).Data should match.
|
|
*/
|
|
int ppc4xx_init_pcie_port(int port, int rootport)
|
|
{
|
|
static int core_init;
|
|
volatile u32 val = 0;
|
|
int attempts;
|
|
u64 addr;
|
|
u32 low, high;
|
|
|
|
if (!core_init) {
|
|
if (ppc4xx_init_pcie())
|
|
return -1;
|
|
++core_init;
|
|
}
|
|
|
|
/*
|
|
* Initialize various parts of the PCI Express core for our port
|
|
*/
|
|
ppc4xx_init_pcie_port_hw(port, rootport);
|
|
|
|
/*
|
|
* Notice: the following delay has critical impact on device
|
|
* initialization - if too short (<50ms) the link doesn't get up.
|
|
*/
|
|
mdelay(100);
|
|
|
|
val = SDR_READ(SDRN_PESDR_RCSSTS(port));
|
|
if (val & (1 << 20)) {
|
|
printf("PCIE%d: PGRST failed %08x\n", port, val);
|
|
return -1;
|
|
}
|
|
|
|
/*
|
|
* Verify link is up
|
|
*/
|
|
val = SDR_READ(SDRN_PESDR_LOOP(port));
|
|
if (!(val & 0x00001000)) {
|
|
printf("PCIE%d: link is not up.\n", port);
|
|
return -ENODEV;
|
|
}
|
|
|
|
/*
|
|
* Setup UTL registers - but only on revA!
|
|
* We use default settings for revB chip.
|
|
*/
|
|
if (!ppc440spe_revB())
|
|
ppc4xx_setup_utl(port);
|
|
|
|
/*
|
|
* We map PCI Express configuration access into the 512MB regions
|
|
*/
|
|
addr = ppc4xx_get_cfgaddr(port);
|
|
low = U64_TO_U32_LOW(addr);
|
|
high = U64_TO_U32_HIGH(addr);
|
|
|
|
switch (port) {
|
|
case 0:
|
|
mtdcr(DCRN_PEGPL_CFGBAH(PCIE0), high);
|
|
mtdcr(DCRN_PEGPL_CFGBAL(PCIE0), low);
|
|
mtdcr(DCRN_PEGPL_CFGMSK(PCIE0), 0xe0000001); /* 512MB region, valid */
|
|
break;
|
|
case 1:
|
|
mtdcr(DCRN_PEGPL_CFGBAH(PCIE1), high);
|
|
mtdcr(DCRN_PEGPL_CFGBAL(PCIE1), low);
|
|
mtdcr(DCRN_PEGPL_CFGMSK(PCIE1), 0xe0000001); /* 512MB region, valid */
|
|
break;
|
|
#if CONFIG_SYS_PCIE_NR_PORTS > 2
|
|
case 2:
|
|
mtdcr(DCRN_PEGPL_CFGBAH(PCIE2), high);
|
|
mtdcr(DCRN_PEGPL_CFGBAL(PCIE2), low);
|
|
mtdcr(DCRN_PEGPL_CFGMSK(PCIE2), 0xe0000001); /* 512MB region, valid */
|
|
break;
|
|
#endif
|
|
}
|
|
|
|
/*
|
|
* Check for VC0 active and assert RDY.
|
|
*/
|
|
attempts = 10;
|
|
while(!(SDR_READ(SDRN_PESDR_RCSSTS(port)) & (1 << 16))) {
|
|
if (!(attempts--)) {
|
|
printf("PCIE%d: VC0 not active\n", port);
|
|
return -1;
|
|
}
|
|
mdelay(1000);
|
|
}
|
|
SDR_WRITE(SDRN_PESDR_RCSSET(port),
|
|
SDR_READ(SDRN_PESDR_RCSSET(port)) | 1 << 20);
|
|
mdelay(100);
|
|
|
|
return 0;
|
|
}
|
|
|
|
int ppc4xx_init_pcie_rootport(int port)
|
|
{
|
|
return ppc4xx_init_pcie_port(port, 1);
|
|
}
|
|
|
|
int ppc4xx_init_pcie_endport(int port)
|
|
{
|
|
return ppc4xx_init_pcie_port(port, 0);
|
|
}
|
|
|
|
void ppc4xx_setup_pcie_rootpoint(struct pci_controller *hose, int port)
|
|
{
|
|
volatile void *mbase = NULL;
|
|
volatile void *rmbase = NULL;
|
|
|
|
pci_set_ops(hose,
|
|
pcie_read_config_byte,
|
|
pcie_read_config_word,
|
|
pcie_read_config_dword,
|
|
pcie_write_config_byte,
|
|
pcie_write_config_word,
|
|
pcie_write_config_dword);
|
|
|
|
switch (port) {
|
|
case 0:
|
|
mbase = (u32 *)CONFIG_SYS_PCIE0_XCFGBASE;
|
|
rmbase = (u32 *)CONFIG_SYS_PCIE0_CFGBASE;
|
|
hose->cfg_data = (u8 *)CONFIG_SYS_PCIE0_CFGBASE;
|
|
break;
|
|
case 1:
|
|
mbase = (u32 *)CONFIG_SYS_PCIE1_XCFGBASE;
|
|
rmbase = (u32 *)CONFIG_SYS_PCIE1_CFGBASE;
|
|
hose->cfg_data = (u8 *)CONFIG_SYS_PCIE1_CFGBASE;
|
|
break;
|
|
#if CONFIG_SYS_PCIE_NR_PORTS > 2
|
|
case 2:
|
|
mbase = (u32 *)CONFIG_SYS_PCIE2_XCFGBASE;
|
|
rmbase = (u32 *)CONFIG_SYS_PCIE2_CFGBASE;
|
|
hose->cfg_data = (u8 *)CONFIG_SYS_PCIE2_CFGBASE;
|
|
break;
|
|
#endif
|
|
}
|
|
|
|
/*
|
|
* Set bus numbers on our root port
|
|
*/
|
|
out_8((u8 *)mbase + PCI_PRIMARY_BUS, 0);
|
|
out_8((u8 *)mbase + PCI_SECONDARY_BUS, 1);
|
|
out_8((u8 *)mbase + PCI_SUBORDINATE_BUS, 1);
|
|
|
|
/*
|
|
* Set up outbound translation to hose->mem_space from PLB
|
|
* addresses at an offset of 0xd_0000_0000. We set the low
|
|
* bits of the mask to 11 to turn off splitting into 8
|
|
* subregions and to enable the outbound translation.
|
|
*/
|
|
out_le32(mbase + PECFG_POM0LAH, 0x00000000);
|
|
out_le32(mbase + PECFG_POM0LAL, CONFIG_SYS_PCIE_MEMBASE +
|
|
port * CONFIG_SYS_PCIE_MEMSIZE);
|
|
debug("PECFG_POM0LA=%08x.%08x\n", in_le32(mbase + PECFG_POM0LAH),
|
|
in_le32(mbase + PECFG_POM0LAL));
|
|
|
|
switch (port) {
|
|
case 0:
|
|
mtdcr(DCRN_PEGPL_OMR1BAH(PCIE0), CONFIG_SYS_PCIE_ADDR_HIGH);
|
|
mtdcr(DCRN_PEGPL_OMR1BAL(PCIE0), CONFIG_SYS_PCIE_MEMBASE +
|
|
port * CONFIG_SYS_PCIE_MEMSIZE);
|
|
mtdcr(DCRN_PEGPL_OMR1MSKH(PCIE0), 0x7fffffff);
|
|
mtdcr(DCRN_PEGPL_OMR1MSKL(PCIE0),
|
|
~(CONFIG_SYS_PCIE_MEMSIZE - 1) | 3);
|
|
debug("0:PEGPL_OMR1BA=%08x.%08x MSK=%08x.%08x\n",
|
|
mfdcr(DCRN_PEGPL_OMR1BAH(PCIE0)),
|
|
mfdcr(DCRN_PEGPL_OMR1BAL(PCIE0)),
|
|
mfdcr(DCRN_PEGPL_OMR1MSKH(PCIE0)),
|
|
mfdcr(DCRN_PEGPL_OMR1MSKL(PCIE0)));
|
|
break;
|
|
case 1:
|
|
mtdcr(DCRN_PEGPL_OMR1BAH(PCIE1), CONFIG_SYS_PCIE_ADDR_HIGH);
|
|
mtdcr(DCRN_PEGPL_OMR1BAL(PCIE1), CONFIG_SYS_PCIE_MEMBASE +
|
|
port * CONFIG_SYS_PCIE_MEMSIZE);
|
|
mtdcr(DCRN_PEGPL_OMR1MSKH(PCIE1), 0x7fffffff);
|
|
mtdcr(DCRN_PEGPL_OMR1MSKL(PCIE1),
|
|
~(CONFIG_SYS_PCIE_MEMSIZE - 1) | 3);
|
|
debug("1:PEGPL_OMR1BA=%08x.%08x MSK=%08x.%08x\n",
|
|
mfdcr(DCRN_PEGPL_OMR1BAH(PCIE1)),
|
|
mfdcr(DCRN_PEGPL_OMR1BAL(PCIE1)),
|
|
mfdcr(DCRN_PEGPL_OMR1MSKH(PCIE1)),
|
|
mfdcr(DCRN_PEGPL_OMR1MSKL(PCIE1)));
|
|
break;
|
|
#if CONFIG_SYS_PCIE_NR_PORTS > 2
|
|
case 2:
|
|
mtdcr(DCRN_PEGPL_OMR1BAH(PCIE2), CONFIG_SYS_PCIE_ADDR_HIGH);
|
|
mtdcr(DCRN_PEGPL_OMR1BAL(PCIE2), CONFIG_SYS_PCIE_MEMBASE +
|
|
port * CONFIG_SYS_PCIE_MEMSIZE);
|
|
mtdcr(DCRN_PEGPL_OMR1MSKH(PCIE2), 0x7fffffff);
|
|
mtdcr(DCRN_PEGPL_OMR1MSKL(PCIE2),
|
|
~(CONFIG_SYS_PCIE_MEMSIZE - 1) | 3);
|
|
debug("2:PEGPL_OMR1BA=%08x.%08x MSK=%08x.%08x\n",
|
|
mfdcr(DCRN_PEGPL_OMR1BAH(PCIE2)),
|
|
mfdcr(DCRN_PEGPL_OMR1BAL(PCIE2)),
|
|
mfdcr(DCRN_PEGPL_OMR1MSKH(PCIE2)),
|
|
mfdcr(DCRN_PEGPL_OMR1MSKL(PCIE2)));
|
|
break;
|
|
#endif
|
|
}
|
|
|
|
/* Set up 4GB inbound memory window at 0 */
|
|
out_le32(mbase + PCI_BASE_ADDRESS_0, 0);
|
|
out_le32(mbase + PCI_BASE_ADDRESS_1, 0);
|
|
out_le32(mbase + PECFG_BAR0HMPA, 0x7ffffff);
|
|
out_le32(mbase + PECFG_BAR0LMPA, 0);
|
|
|
|
out_le32(mbase + PECFG_PIM01SAH, 0xffff0000);
|
|
out_le32(mbase + PECFG_PIM01SAL, 0x00000000);
|
|
out_le32(mbase + PECFG_PIM0LAL, 0);
|
|
out_le32(mbase + PECFG_PIM0LAH, 0);
|
|
out_le32(mbase + PECFG_PIM1LAL, 0x00000000);
|
|
out_le32(mbase + PECFG_PIM1LAH, 0x00000004);
|
|
out_le32(mbase + PECFG_PIMEN, 0x1);
|
|
|
|
/* Enable I/O, Mem, and Busmaster cycles */
|
|
out_le16((u16 *)(mbase + PCI_COMMAND),
|
|
in_le16((u16 *)(mbase + PCI_COMMAND)) |
|
|
PCI_COMMAND_IO | PCI_COMMAND_MEMORY | PCI_COMMAND_MASTER);
|
|
|
|
/* Set Device and Vendor Id */
|
|
out_le16(mbase + 0x200, 0xaaa0 + port);
|
|
out_le16(mbase + 0x202, 0xbed0 + port);
|
|
|
|
/* Set Class Code to PCI-PCI bridge and Revision Id to 1 */
|
|
out_le32(mbase + 0x208, 0x06040001);
|
|
|
|
printf("PCIE%d: successfully set as root-complex\n", port);
|
|
}
|
|
|
|
int ppc4xx_setup_pcie_endpoint(struct pci_controller *hose, int port)
|
|
{
|
|
volatile void *mbase = NULL;
|
|
int attempts = 0;
|
|
|
|
pci_set_ops(hose,
|
|
pcie_read_config_byte,
|
|
pcie_read_config_word,
|
|
pcie_read_config_dword,
|
|
pcie_write_config_byte,
|
|
pcie_write_config_word,
|
|
pcie_write_config_dword);
|
|
|
|
switch (port) {
|
|
case 0:
|
|
mbase = (u32 *)CONFIG_SYS_PCIE0_XCFGBASE;
|
|
hose->cfg_data = (u8 *)CONFIG_SYS_PCIE0_CFGBASE;
|
|
break;
|
|
case 1:
|
|
mbase = (u32 *)CONFIG_SYS_PCIE1_XCFGBASE;
|
|
hose->cfg_data = (u8 *)CONFIG_SYS_PCIE1_CFGBASE;
|
|
break;
|
|
#if defined(CONFIG_SYS_PCIE2_CFGBASE)
|
|
case 2:
|
|
mbase = (u32 *)CONFIG_SYS_PCIE2_XCFGBASE;
|
|
hose->cfg_data = (u8 *)CONFIG_SYS_PCIE2_CFGBASE;
|
|
break;
|
|
#endif
|
|
}
|
|
|
|
/*
|
|
* Set up outbound translation to hose->mem_space from PLB
|
|
* addresses at an offset of 0xd_0000_0000. We set the low
|
|
* bits of the mask to 11 to turn off splitting into 8
|
|
* subregions and to enable the outbound translation.
|
|
*/
|
|
out_le32(mbase + PECFG_POM0LAH, 0x00001ff8);
|
|
out_le32(mbase + PECFG_POM0LAL, 0x00001000);
|
|
|
|
switch (port) {
|
|
case 0:
|
|
mtdcr(DCRN_PEGPL_OMR1BAH(PCIE0), CONFIG_SYS_PCIE_ADDR_HIGH);
|
|
mtdcr(DCRN_PEGPL_OMR1BAL(PCIE0), CONFIG_SYS_PCIE_MEMBASE +
|
|
port * CONFIG_SYS_PCIE_MEMSIZE);
|
|
mtdcr(DCRN_PEGPL_OMR1MSKH(PCIE0), 0x7fffffff);
|
|
mtdcr(DCRN_PEGPL_OMR1MSKL(PCIE0),
|
|
~(CONFIG_SYS_PCIE_MEMSIZE - 1) | 3);
|
|
break;
|
|
case 1:
|
|
mtdcr(DCRN_PEGPL_OMR1BAH(PCIE1), CONFIG_SYS_PCIE_ADDR_HIGH);
|
|
mtdcr(DCRN_PEGPL_OMR1BAL(PCIE1), CONFIG_SYS_PCIE_MEMBASE +
|
|
port * CONFIG_SYS_PCIE_MEMSIZE);
|
|
mtdcr(DCRN_PEGPL_OMR1MSKH(PCIE1), 0x7fffffff);
|
|
mtdcr(DCRN_PEGPL_OMR1MSKL(PCIE1),
|
|
~(CONFIG_SYS_PCIE_MEMSIZE - 1) | 3);
|
|
break;
|
|
#if CONFIG_SYS_PCIE_NR_PORTS > 2
|
|
case 2:
|
|
mtdcr(DCRN_PEGPL_OMR1BAH(PCIE2), CONFIG_SYS_PCIE_ADDR_HIGH);
|
|
mtdcr(DCRN_PEGPL_OMR1BAL(PCIE2), CONFIG_SYS_PCIE_MEMBASE +
|
|
port * CONFIG_SYS_PCIE_MEMSIZE);
|
|
mtdcr(DCRN_PEGPL_OMR1MSKH(PCIE2), 0x7fffffff);
|
|
mtdcr(DCRN_PEGPL_OMR1MSKL(PCIE2),
|
|
~(CONFIG_SYS_PCIE_MEMSIZE - 1) | 3);
|
|
break;
|
|
#endif
|
|
}
|
|
|
|
/* Set up 64MB inbound memory window at 0 */
|
|
out_le32(mbase + PCI_BASE_ADDRESS_0, 0);
|
|
out_le32(mbase + PCI_BASE_ADDRESS_1, 0);
|
|
|
|
out_le32(mbase + PECFG_PIM01SAH, 0xffffffff);
|
|
out_le32(mbase + PECFG_PIM01SAL, 0xfc000000);
|
|
|
|
/* Setup BAR0 */
|
|
out_le32(mbase + PECFG_BAR0HMPA, 0x7fffffff);
|
|
out_le32(mbase + PECFG_BAR0LMPA, 0xfc000000 | PCI_BASE_ADDRESS_MEM_TYPE_64);
|
|
|
|
/* Disable BAR1 & BAR2 */
|
|
out_le32(mbase + PECFG_BAR1MPA, 0);
|
|
out_le32(mbase + PECFG_BAR2HMPA, 0);
|
|
out_le32(mbase + PECFG_BAR2LMPA, 0);
|
|
|
|
out_le32(mbase + PECFG_PIM0LAL, U64_TO_U32_LOW(CONFIG_SYS_PCIE_INBOUND_BASE));
|
|
out_le32(mbase + PECFG_PIM0LAH, U64_TO_U32_HIGH(CONFIG_SYS_PCIE_INBOUND_BASE));
|
|
out_le32(mbase + PECFG_PIMEN, 0x1);
|
|
|
|
/* Enable I/O, Mem, and Busmaster cycles */
|
|
out_le16((u16 *)(mbase + PCI_COMMAND),
|
|
in_le16((u16 *)(mbase + PCI_COMMAND)) |
|
|
PCI_COMMAND_IO | PCI_COMMAND_MEMORY | PCI_COMMAND_MASTER);
|
|
out_le16(mbase + 0x200, 0xcaad); /* Setting vendor ID */
|
|
out_le16(mbase + 0x202, 0xfeed); /* Setting device ID */
|
|
|
|
/* Set Class Code to Processor/PPC */
|
|
out_le32(mbase + 0x208, 0x0b200001);
|
|
|
|
attempts = 10;
|
|
while(!(SDR_READ(SDRN_PESDR_RCSSTS(port)) & (1 << 8))) {
|
|
if (!(attempts--)) {
|
|
printf("PCIE%d: BME not active\n", port);
|
|
return -1;
|
|
}
|
|
mdelay(1000);
|
|
}
|
|
|
|
printf("PCIE%d: successfully set as endpoint\n", port);
|
|
|
|
return 0;
|
|
}
|
|
#endif /* CONFIG_440SPE && CONFIG_PCI */
|
|
|